Two kinds of mobile bathroom
Almost every mobile bathroom rental falls into one of two buckets: single-unit porta potties (one cabin, chemical tank) or restroom trailers (multiple stalls, flush toilets, running water). The right choice comes down to who's using it.
| Factor | Single-unit porta potty | Restroom trailer |
|---|---|---|
| Capacity | ~10 uses/hr, 1 stall | 50+ uses/hr, 2–10 stalls |
| Comfort | Ambient temp, no sink or basic sink | A/C + heat, hot-water vanities |
| Footprint | 4×4 ft, drops anywhere | 20×8 ft, needs reasonably flat access |
| Cost/day | $100–$300 | $1,000–$2,500+ |
| Right for | Work sites, back-of-house | Weddings, galas, production, parties |
Match the unit to the event
- Crew or back-of-house only → single-unit porta potty
- Guest-facing, under ~25 people, tight budget → deluxe porta potty
- Guest-facing, 25+ people, comfort matters → restroom trailer
- Multi-day or upscale (wedding, gala, film) → restroom trailer
Don't forget access and hookups
A trailer needs flatter ground and may need power and water on site — easy to plan once you know. See our restroom trailer power and water requirements guide before your date.